<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Hello World</title>
    <style>
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            overflow: hidden;
        }
        .container {
            text-align: center;
            padding: 2rem;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 16px;
            box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
            backdrop-filter: blur(4px);
            animation: fadeIn 0.6s ease-out;
        }
        h1 {
            color: #2c3e50;
            font-size: 3rem;
            margin-bottom: 0.5rem;
            background: linear-gradient(90deg, #3498db, #2ecc71);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        p {
            color: #7f8c8d;
            font-size: 1.2rem;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
    </style>
</head>
<body>
<div class="container">
    <h1>Hello World!</h1>
    <p>Welcome to slacker DB world.</p>
</div>
</body>
</html>
